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11 KV VCB

17pdl_11-KV-VCB.gif

  • Application
    Control & Protection of Transformer Power
  • Reference Standard
    IEC 62271-200(2003)/ IS:3427(1997)
  • Operational Voltage
    12KV
  • Operational Current
    630,800,1250,1600,2000,2500,3150A
  • Phase/ Frequency
    3 Phase/ 50 Hz
  • Insulation Level
    28KV rms/ 75KV Peak
  • Short Time Rating
    20/26.3/ 31.5/ 44 KA
  • Peak Withstand Current
    50/ 66/ 80/ 110 KA peak
  • Degree of Protection
    IP-54 (Indoor)/ IP-55 (Outdoor)
  • Internal Compartment
    IP-2X
  • Max. Temp. Rise
    40 deg C over ambient 45 deg C
  • Relative Humidity
    95%
  • Overall Dimension for Single Bay
  • Up to 1250A
    700x1800x2300mm (WxDxH)
  • For 1600A-2000A
    800x1800x2455mm (WxDxH)
  • For 2500-3150A
    1000x1800x2455mm (WxDxH)
  • Special Test
    Internal Arc Classified AFLR10KA
  • Designed & tested in accordance with IEC 62271-200/IS-3427.
  • Vacuum used as insulation and arc interruption medium.
  • Independent exhaust vents for all HT compartments.
  • Operationally safe and reliable in a wide range of ambient temperatures.
  • Live parts covered by automatic shutters when breaker is racked out
  • Removable fuses mounted on the PT.
  • Internal Arc Type Tested.
  • Apparatus customized as per requirement.
  • Features of operating mechanism:
    • Closing spring charged by motor in less than 15 seconds